NPPES file of Aug 9, 2026

Dean Olsen, DO

Medical Toxicology (Emergency Medicine) Physician · Bronx, NY

Dean Olsen, DO is a medical toxicology (emergency medicine) physician with a practice address in Bronx, New York, and NPI 1841240868, issued on May 11, 2006. Check the license (New York 235895, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841240868
Name
Dean Olsen
Credential
DO
Primary taxonomy
Medical Toxicology (Emergency Medicine) Physician 207PT0002X
License number
235895 NY
Self-reported in NPPES; status is on the state search
Practice location
4422 3RD Ave, Bronx, NY 10457
Phone
(718) 960-6103
Enumerated
May 11, 2006
Record last updated
Mar 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(718) 960-6125
Medicaid ID
02691041 NY
Medicare enrollment
Enrolled (PECOS I20051118000002); accepts Medicare assignment
Medical or professional school
New York College Of Osteo Medicine Of New York Institute Of Technology, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4422 3RD Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Matthew Abad, D.O.Emergency Medicine Physician1629490693
  2. Jamaad AbdiDentist1609458421
  3. Rita Abraham, DOStudent in an Organized Health Care Education/Training Program1326743378
  4. Hiluf Abule, MDStudent in an Organized Health Care Education/Training Program1083447452
  5. Yohannes Achamyeleh, MDStudent in an Organized Health Care Education/Training Program1912745548
  6. Juan Acosta, DOEmergency Medicine Physician1316940968

Verify Dean Olsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 235895
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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67% fewer Medicare Part D claims than the average medical toxicology (emergency medicine) physician in 2024

46 Medicare Part D claims for 38 beneficiaries, against an average of 138 among the 103 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Dean Olsen46
  2. Specialty average138

Most prescribed

  1. Albuterol Sulfate Hfa12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 91.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%91.7
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $84.38

4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 21 providers of this specialty with any payment received $1,426.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dean Olsen$84.38
  2. Specialty average$1,426.84

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. North Shore Lij Urgent Care PCGreenvale, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dean Olsen among 17 medical toxicology (emergency medicine) physician records in New York

Dean Olsen, DO is one of 17 medical toxicology (emergency medicine) physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 65% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated1999 · median 2009 among the 15 with a school on file
  • Record last updated2014 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PT0002X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Toxicology (Emergency Medicine) Physician providers in New York

There are 17 medical toxicology (emergency medicine) physician records in New York.

The 8 medical toxicology (emergency medicine) physician records with the nearest ZIP codes

  1. Rama Rao, M.D.New York, NY 100651720077803
  2. Joseph Rella, M.D.New York, NY 100651336165604
  3. Glendon Henry, MDNew York, NY 100371831284272
  4. Rana Biary, MDNew York, NY 100161891957742
  5. Emily Cohen, MDNew York, NY 100161285051185
  6. Daniel Herbert-Cohen, M.D.New York, NY 100161487975330
  7. Jeff Lapoint, D.O.New York, NY 100161508012303
  8. Larissa Laskowski, D.O.New York, NY 100161114151867

Common questions

What is Dean Olsen, DO's NPI number?

Dean Olsen, DO's National Provider Identifier (NPI) is 1841240868, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dean Olsen, DO located?

The NPPES record lists a practice address at 4422 3RD Ave, Bronx, NY, 10457. Phone: (718) 960-6103. Providers update this record themselves, so call before visiting.

How can I verify Dean Olsen, DO's license?

NPPES lists New York license number 235895, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dean Olsen, DO prescribe under Medicare Part D?

In 2024, Dean Olsen, DO had 46 Medicare Part D claims for 38 beneficiaries; the average among medical toxicology (emergency medicine) physician prescribers was 138. Part D covers Medicare prescriptions only.

What is Dean Olsen, DO's MIPS final score?

The 2023 MIPS final score is 91.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.